BUG=630705
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
TBR=blundell@chromium.org,jrummell@chromium.org,kelvinp@chromium.org,piman@chromium.org

Review-Url: https://codereview.chromium.org/1302233003
Cr-Commit-Position: refs/heads/master@{#469611}